/* layout */
.header-layout {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 48px;
  border-bottom: 1px solid #e8e8e8;
}

.nav-layout {
  overflow: hidden;
  position: absolute;
  top: 48px;
  left: 0;
  width: 100%;
  height: 0;
  transition: height 0.5s;
}
.nav-layout-extended {
  height: 200px;
}

.main-layout {
  padding: 48px 0 48px 0;
}

.slider-layout {
  margin-bottom: 20px;
}

.course-layout {
  margin-bottom: 10px;
}

.tabbar-layout {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 48px;
  box-shadow: 0 -4px 4px rgba(0, 0, 0, 0.15);
}
